Canonical Atlas record

TS 38.521-1

NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 1: Range 1 standalone

Responsible WGR5
StatusUnder change control
Initial releaseRel-15
Selected releaseRel-16
Latest indexed version20.0.0
Series38
TypeTS
Visual answer

TS 38.521-1 relationship map

NR UE RF conformance

Rel-16mixed provenance
TS 38.521-1NR UE RF conformance
No mapped relationship in this release.The document may exist, but Atlas has no release-valid relationship evidence for the selected snapshot yet.

Release-aware filtering uses explicit relationship validity where mapped and official initial-release metadata where available. Unknown relationship validity remains visible and labelled rather than guessed.

Release evolution

Compare evidence between releases

Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.

Release ledger

Version · WI · CR evidence by release

Rel-1515.4.02 WI725 CRs · 249 approved
Rel-1616.8.013 WI836 CRs · 470 approved
Rel-1717.11.025 WI1770 CRs · 1099 approved
Rel-1818.8.026 WI1342 CRs · 896 approved
Rel-1919.6.015 WI678 CRs · 420 approved
Rel-2020.0.01 WI6 CRs · 3 approved

Rel-16 snapshot

Work affecting this release

836 indexed Change Requests · 13 connected Work Items.

Showing 0 CR records from the available cross-release sample. Browse release CR records (JSON) →

Version history

Indexed versions

Showing 60 of 60 indexed versions.

20.0.0Rel-20—2026-10-09
19.6.0Rel-19—2026-10-09
18.8.0Rel-18RAN#1132026-10-07
19.5.1Rel-19RAN#1122026-07-16
19.5.0Rel-19RAN#1122026-07-15
19.4.0Rel-19RAN#1112026-04-10
19.3.0Rel-19RAN#1102026-01-20
19.2.0Rel-19RAN5#1082025-10-22
19.1.0Rel-19RAN#1092025-10-21
19.0.0Rel-19RAN#1082025-07-18
18.7.0Rel-18RAN#1082025-07-18
18.6.0Rel-18RAN#1072025-04-16
18.5.0Rel-18RAN#1062025-01-22
18.4.0Rel-18RAN#1052024-10-13
18.3.0Rel-18RAN#1042024-07-19
18.2.0Rel-18RAN#1032024-04-19
18.1.0Rel-18RAN#1022024-01-11
17.11.0Rel-17RAN#1022024-01-03
18.0.0Rel-18RAN#1012023-10-12
17.10.0Rel-17RAN#1012023-10-12
17.9.0Rel-17RAN#1002023-07-18
17.8.0Rel-17RAN#992023-04-19
17.7.0Rel-17RAN#98-e2023-01-18
15.4.0Rel-15RAN#98-e2023-01-17
17.6.1Rel-17RAN#97-e2022-10-11
17.6.0Rel-17RAN#97-e2022-10-05
17.5.0Rel-17RAN#962022-07-01
17.4.1Rel-17RAN#95-e2022-06-03
17.4.0Rel-17RAN#95-e2022-04-08
17.3.0Rel-17RAN#94-e2022-01-03
17.2.1Rel-17RAN#93-e2021-10-21
17.2.0Rel-17RAN#93-e2021-10-01
17.1.0Rel-17RAN#92-e2021-07-05
16.8.0Rel-16RAN#92-e2021-07-02
17.0.0Rel-17RAN#91-e2021-04-14
16.7.0Rel-16RAN#91-e2021-04-14
16.6.0Rel-16RAN#90-e2021-01-08
16.5.0Rel-16RAN#89-e2020-10-08
16.4.0Rel-16RAN#88-e2020-07-17
16.3.0Rel-16RAN#87-e2020-03-31
16.2.0Rel-16RAN#862020-01-09
16.1.1Rel-16RAN#852019-10-15
16.1.0Rel-16RAN#852019-10-04
16.0.0Rel-16RAN#842019-06-28
15.3.0Rel-15RAN#842019-06-28
15.2.0Rel-15RAN#832019-03-28
15.1.0Rel-15RAN#822018-12-19
15.0.0Rel-15RAN#812018-09-21
1.0.1Rel-15 · pre-approvalRAN5#802018-09-10
0.5.1Rel-15 · pre-approvalRAN5#792018-07-12
0.5.0Rel-15 · pre-approvalRAN5#792018-07-12
0.4.0Rel-15 · pre-approvalRAN5#2-5G-NR Adhoc2018-04-22
0.3.1Rel-15 · pre-approvalRAN5#2-5G-NR Adhoc2018-03-29
0.3.0Rel-15 · pre-approvalRAN5#2-5G-NR Adhoc2018-03-27
0.2.0Rel-15 · pre-approvalRAN5#782018-03-19
0.1.0Rel-15 · pre-approvalRAN5#1-5G-NR Adhoc2018-01-26
0.0.1Rel-15 · pre-approvalRAN5#762017-11-06
20.0.0Rel-20RAN#113—
19.6.0Rel-19RAN#113—
1.0.0Rel-15 · pre-approvalRAN5#79—

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 38.521-1

5GS_NR_LTE-UEConTest

UE Conformance Test Aspects - 5G system with NR and LTE

Rel-15official
TEI15_Test

(Small) Test Technical Enhancements and Improvements for Rel-15

Rel-15parsed
5G_V2X_NRSL_eV2XARC-UEConTest

UE Conformance Test Aspects - 5G V2X with NR sidelink

Rel-16parsed
ENDC_UE_PC2_FDD_TDD-UEConTest

UE Conformance Test Aspects - High power UE (power class 2) for EN-DC (1 LTE FDD band + 1 NR TDD band)

Rel-16parsed
ENDC_UE_PC2_TDD_TDD-UEConTest

UE Conformance Test Aspects - High power UE (power class 2) for EN-DC (1 LTE TDD band + 1 NR TDD band)

Rel-16parsed
LTE_NR_B41_Bn41_PC29dBm-UEConTest

UE Conformance Test Aspects - 29 dBm UE Power Class for LTE Band 41 and NR Band n41

Rel-16parsed
LTE_NR_DC_CA_enh-UEConTest

UE Conformance Test Aspects - LTE-NR & NR-NR Dual Connectivity and NR CA enhancements

Rel-16parsed
NR_CADC_NR_LTE_DC_R16-UEConTest

UE Conformance Test Aspects - Rel-16 NR CA and DC; and NR and LTE DC Configurations

Rel-16parsed
NR_RF_FR1

RF requirements for NR frequency range 1 (FR1)

Rel-16parsed
NR_RF_FR1-UEConTest

UE Conformance Test Aspects - RF requirements for NR FR1

Rel-16parsed
NR_bands_BW_R16-UEConTest

UE Conformance Test Aspects for new Rel-16 NR bands and extension of existing NR bands

Rel-16parsed
NR_eMIMO-UEConTest

UE Conformance Test Aspects - Enhancements on MIMO for NR

Rel-16parsed
NR_unlic-UEConTest

UE Conformance Test Aspects - NR-based access to unlicensed spectrum

Rel-16parsed
TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Rel-16parsed
TEI16_Test

(Small) Test Technical Enhancements and Improvements for Rel-16

Rel-16parsed
DL_intrpt_combos_TxSW_R17-UEConTest

UE Conformance - Downlink interruption for NR and EN-DC band combinations to conduct dynamic Tx Switching in Uplink

Rel-17parsed
DSS_LTE_B34_NR_Bn34_LTE_B39_NR_Bn39-UEConTest

UE Conformance - LTE/NR spectrum sharing in Band 34/n34 and Band 39/n39

Rel-17parsed
HPUE_PC1_5_n77_n78-UEConTest

UE Conformance - High-power UE (power class 1.5) operation in NR bands n77 and n78

Rel-17parsed
NR_4Rx_Bn8_FWA-UEConTest

UE Conformance - 4Rx support for NR band n8

Rel-17parsed
NR_CADC_NR_LTE_DC_R17-UEConTest

UE Conformance - Rel-17 NR CA and DC; and NR and LTE DC Configurations

Rel-17parsed
NR_DL1024QAM_FR1-UEConTest

UE Conformance - Introduction of DL 1024QAM for NR FR1

Rel-17parsed
NR_NTN_solutions_plus_CT-UEConTest

UE Conformance - Solutions for NR to support non-terrestrial networks (NTN) plus CT aspects

Rel-17parsed
NR_PC2_CA_R17_2BDL_2BUL

Rel-17 High power UE for NR inter-band Carrier Aggregation with 2 bands downlink and x bands uplink (x=1,2)

Rel-17parsed
NR_PC2_CA_R17_2BDL_2BUL-UEConTest

UE Conformance - Rel-17 High power UE for NR inter-band Carrier Aggregation with 2 bands downlink and x bands uplink (x=1,2)

Rel-17parsed
NR_PC2_UE_FDD-UEConTest

UE Conformance - High power UE (power class 2) for one NR FDD band

Rel-17parsed
NR_RF_FR1_enh-UEConTest

UE Conformance - RF requirements enhancement for NR frequency range 1 (FR1)

Rel-17parsed
NR_RF_TxD-UEConTest

UE Conformance - UE RF requirements for Transparent Tx Diversity (TxD) for NR

Rel-17parsed
NR_SAR_PC2_interB_SUL_2BUL-UEConTest

UE Conformance - SAR schemes for UE power class 2 (PC2) for NR inter-band Carrier Aggregation and supplemental uplink (SUL) configurations with 2 bands UL

Rel-17parsed
NR_SL_enh-UEConTest

UE Conformance - NR Sidelink enhancement

Rel-17parsed
NR_UE_PC1_5_n79-UEConTest

UE Conformance - High power UE (power class 1.5) for NR band n79

Rel-17parsed
NR_UE_PC2_R17_CADC_SUL_xBDL_yBUL-UEConTest

UE Conformance - Rel-17 Power Class 2 UE for NR inter-band CA/DC with or without SUL configurations with x (6>=x>2) bands DL and y (y=1, 2) bands UL

Rel-17parsed
NR_UE_PC2_n34-UEConTest

UE Conformance - High power UE (power class 2) for NR band n34

Rel-17parsed
NR_UE_PC2_n39-UEConTest

UE Conformance - High power UE (power class 2) for NR band n39

Rel-17parsed
NR_bands_UL_MIMO_PC3_R17-UEConTest

UE Conformance - Additional NR bands for UL-MIMO in Rel-17

Rel-17parsed
NR_cov_enh-UEConTest

UE Conformance - NR coverage enhancements

Rel-17parsed
NR_intra_HPUE_R17-UEConTest

UE Conformance - High power UE for NR TDD intra-band carrier aggregation in frequency range FR1

Rel-17parsed
NR_lic_bands_BW_R17-UEConTest

UE Conformance - New Rel-17 NR licensed bands and extension of existing NR bands

Rel-17parsed
NR_redcap_plus_ARCH-UEConTest

UE Conformance - Support of reduced capability NR devices

Rel-17parsed
Power_Limit_CA_DC-UEConTest

UE Conformance - Increasing UE power high limit for CA and DC

Rel-17parsed
TEI17_Test

(Small) Test Technical Enhancements and Improvements for Rel-17

Rel-17parsed
4Rx_NR_bands_R18-UEConTest

UE Conformance - 4Rx for NR bands for FWA (Fixed Wireless Access) UEs (<2.6GHz) and handheld UEs (1GHz to 2.6GHz)

Rel-18parsed
4Rx_low_NR_band_handheld_3Tx_NR_CA_ENDC-UEConTest

UE Conformance - 4Rx handheld UE for low NR bands (<1GHz) and/or 3Tx for NR inter-band UL Carrier Aggregation (CA) and EN-DC

Rel-18parsed
DL_intrpt_combos_TxSW_R18-UEConTest

UE Conformance - Rel-18 downlink interruption for NR and EN-DC band combinations at dynamic Tx Switching in Uplink

Rel-18parsed
HPUE_NR_CADC_NR_LTE_DC_R18-UEConTest

UE Conformance - Rel-18 High Power UE for NR CA and DC; and NR and LTE DC Configurations;

Rel-18parsed
HPUE_NR_FR1_FDD_R18-UEConTest

UE Conformance - High power UE (power class 2) for NR FR1 FDD single band

Rel-18parsed
HPUE_NR_FR1_TDD_R18-UEConTest

UE Conformance - High power UE (power class 1.5) for NR FR1 TDD single band

Rel-18parsed
LTE_900MHz_US-UEConTest

UE Conformance - Introduction of 900 MHz LTE band in the US

Rel-18parsed
LTE_NR_HPUE_FWVM_R18-UEConTest

UE Conformance - High-power UE operation for fixed-wireless/vehicle-mounted use cases in LTE bands and NR bands in Rel-18

Rel-18parsed
LTE_NR_Simult_RxTx_R18-UEConTest

UE Conformance - Simultaneous Rx/Tx band combinations for NR CA/DC, NR SUL and LTE/NR DC in Rel-18

Rel-18parsed
LTE_TDD_1670_1675MHz-UEConTest

UE Conformance - Introduction of LTE TDD band in 1670 1675 MHz

Rel-18parsed
NR_ATG-UEConTest

UE Conformance - Air-to-ground network for NR

Rel-18parsed
NR_CADC_NR_LTE_DC_R18-UEConTest

UE Conformance - Rel-18 NR CA and DC; and NR and LTE DC Configurations

Rel-18parsed
NR_ENDC_RF_FR1_enh2-UEConTest

UE Conformance - Further RF requirements enhancement for NR and EN-DC in frequency range 1

Rel-18parsed
NR_FDD_bands_R18_redcap-UEConTest

UE Conformance - New NR FDD bands for RedCap (Reduced Capability) in Rel-18

Rel-18parsed
NR_FR1_lessthan_5MHz_BW-UEConTest

UE Conformance - NR support for dedicated spectrum less than 5MHz for FR1

Rel-18parsed
NR_MC_enh-UEConTest

UE Conformance - Multi-carrier enhancements for NR

Rel-18parsed
NR_MIMO_evo_DL_UL-UEConTest

UE Conformance - NR MIMO evolution for downlink and uplink

Rel-18parsed
NR_SL_enh2-UEConTest

UE Conformance - NR sidelink evolution

Rel-18parsed
NR_UAV_plus_CT1-UEConTest

UE Conformance - NR Support for UAV (Uncrewed Aerial Vehicles) plus CT1 aspects

Rel-18parsed
NR_XR_enh_plus_CT1-UEConTest

UE Conformance - XR (eXtended Reality) enhancements for NR plus CT1 aspects

Rel-18parsed
NR_bands_UL_MIMO_R18-UEConTest

UE Conformance - Additional NR bands for UL-MIMO in Rel-18

Rel-18parsed
NR_channel_raster_enh-UEConTest

UE Conformance - Channel raster enhancement

Rel-18parsed
NR_cov_enh2-UEConTest

UE Conformance - Further NR coverage enhancements

Rel-18parsed
NR_lic_bands_BW_R18-UEConTest

UE Conformance - New Rel-18 NR licensed bands and extension of existing NR bands

Rel-18parsed
NR_redcap_enh_plus_CT1-UEConTest

UE Conformance - Enhanced support of reduced capability NR devices plus CT1 aspects

Rel-18parsed
TEI18_Test

Test - (Small) Technical Enhancements and Improvements for Rel-18

Rel-18parsed
DL_intrpt_combos_TxSW_R19-UEConTest

UE Conformance - Rel-19 downlink interruption for NR and EN-DC band combinations at dynamic Tx Switching in Uplink

Rel-19parsed
HPUE_NR_CADC_SUL_R19-UEConTest

UE Conformance - Rel-19 High power UE (power class 1.5 or 2) for NR intra-band Carrier Aggregation (CA) or NR inter-band CA/Dual connectivity (DC) band combinations with/without NR Supplementary Uplink (SUL)

Rel-19parsed
HPUE_NR_FR1_bands_R19-UEConTest

UE Conformance - Rel-19 High power UE (power class 1.5 and 2) for NR FR1 TDD/FDD single band for handheld/FWA UEs, and high power UE operation (power class 2, 1.5 and 1) for FWVM (fixed-wireless/vehicle-mounted) use cases in a single NR band

Rel-19parsed
LTE_NR_R19_Simult_RxTx-UEConTest

UE Conformance - Simultaneous Rx/Tx band combinations for NR CA/DC, NR SUL and LTE/NR DC in Rel-19

Rel-19parsed
NR_CADC_NR_LTE_DC_R19-UEConTest

UE Conformance - Rel-19 NR CA and DC; and NR and LTE DC Configurations

Rel-19parsed
NR_ENDC_RF_Ph4-UEConTest

UE Conformance - UE RF enhancements for NR FR1/FR2 and EN-DC, Phase 4

Rel-19parsed
NR_FR1_lessthan_5MHz_BW_Ph2-UEConTest

UE Conformance - NR channel BW less than 5MHz for FR1 Phase 2

Rel-19parsed
NR_LBCA_Sw-UEConTest

UE Conformance - Low NR band carrier aggregation via switching

Rel-19parsed
NR_LPWUS-UEConTest

UE Conformance - Low-power wake-up signal and receiver for NR

Rel-19parsed
NR_MIMO_Ph5-UEConTest

UE Conformance - NR MIMO Phase 5

Rel-19parsed
NR_PC2_RedCap_UE-UEConTest

UE Conformance - NR power class 2 RedCap (Reduced Capability) UE in FR1

Rel-19parsed
NR_bands_xFeature_R19-UEConTest

UE Conformance - Additional NR bands for NR features in Rel-19

Rel-19parsed
NR_lic_bands_BW_R19-UEConTest

UE Conformance - New Rel-19 NR licensed bands and extension of existing NR bands

Rel-19parsed
NR_n28_PC2_40MHz_CBW-UEConTest

UE Conformance - Introduction of Power Class 2 and UE 40MHz Channel Bandwidth in NR band n28

Rel-19parsed
TEI19_Test

Test - (Small) Technical Enhancements and Improvements for Rel-19

Rel-19parsed
NR_CADC_NR_LTE_DC_R20-UEConTest

UE Conformance - Rel-20 NR CA and DC; and NR and LTE DC Configurations

Rel-20parsed

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